Alejandro Chacin vs. Tom Mastny — Career Comparison

On the career pitching numbers, Tom Mastny posted a stronger line than Alejandro Chacin. Tom Mastny posted stronger numbers in ERA (6.13 vs 10.5) and WHIP (1.819 vs 2.500). By the career numbers, Tom Mastny had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.